【摘要】 用穆斯堡尔谱学及X 射线衍射等实验方法研究了Fe_Ni_Al_Ti 半硬磁合金在加上过程中相结构的变化,确定了650℃最终回火后合金中的顺磁相为弥散分布在铁磁性基体上的含铁的NiAl 及含铁的Ni₃Al 或Ni₃（AlTi）粒子,据此解释了合金在冷轧和回火后的磁硬化。更多还原

【Abstract】 The phase structure and magnetic transformation of the semihard Fe-16.29%Ni-3.1%A1-1.13%Ti magnetic alloy in working processes has been investigated by means of M（?）ssbauer spectroscopy and X-ray diffraction experiments.It is shown that the alloy are ferromagnetic single phase solidsolution with b.c.c,structure at room temperature after homogenization at1050℃ and quenching.The alloy elements are decomposed from the matrix inthe process of the first cold rolling ang intermediate tempering at 700℃.The-re are rather more precipitation particles which are mainly NiAl and Ni₃Alcontaining Fe after the second cold rolling and final tempering at 650℃.The-se particles are paramagnetic ones dispersed in ferromagnetic matrix that cau-se magnetic hardening.The magnetic preferred orientation domain leads touniaxial magnetic anisotropy,so the magnetic hysteresis loop of the alloysmeasured along the rolling direction can be nearly rectangular.更多还原